2004 3.8 Impala HVAC System Failure

5

Asked by Nov 13, 2015 at 12:46 AM about the 2004 Chevrolet Impala LS

Question type: Maintenance & Repair

I have a 2004 Chevy Impala 3.8 (VIN-K) that is only blowing out cold air on
both passenger and driver side.

When the Temperature control is turned to hot, there is no noise of the
motors switching, thus the car remains stuck in AC/Cool.

Fan Speed Control - Works
Mode Selection(Defrost, upper, lower, etc) - Work

With the research I've done I've come to these points of failure, with
questions...

Blend Door Actuator - Makes sense, but if so, how many do I need to buy?
I can't seem to nail down the correct number (assumption is 2),
additionally, is there a difference between the "drivers side" and
"passenger side" actuator parts?

Air Flap Actuator - AC Delco 15-74122
Can't find any info on this guy, what it really does, or where it's located.  
Could it be my problem, and if so....where is it in the assembly?

HVAC Control Panel -
It should be noted that the lights in my current control panel do not work in
the temperature control area. This is what draws me to this conclusion of
this part possibly being bad.

Any advice would be appreciated.  I would prefer not to spend more money
than I have to, and buy parts that I don't need on this issue; or have to
mess around with a goose chase of taking my dash a part a couple times
to replace different parts.

2 Answers

42,755

I do believe you are on the wright track. The parts store can tell you how many actuators are in the car, and I believe the AC Delco part would be the same. The temp. control unit is easy to take out, check for a bunt bulb.

42,755

Also the parts store would have a picture of the item in question, some times I know what the problem is and just having the part in hand helps locate the one I want to replace. These parts would be under the dash.

Your Answer

Add photo

Related Questions

Search Chevrolet Impala Questions

UK Questions

Are you a UK consumer? CarGurus now has a discussion forum in the UK.

Chevrolet Impala Experts

#1 Danny Wang
Danny Wang
Reputation 1,610
#2 Js08016
Js08016
Reputation 1,550
#3 Tom Demyan
Tom Demyan
Reputation 1,410
View All

Related Models For Sale

Used Chevrolet Malibu
1,125 Great Deals out of 82,058 listings starting at $1,800
Used Honda Accord
994 Great Deals out of 74,838 listings starting at $899
Used Nissan Maxima
391 Great Deals out of 24,609 listings starting at $999
Used Chrysler 300
472 Great Deals out of 22,558 listings starting at $1,000
Used Nissan Altima
1,052 Great Deals out of 82,877 listings starting at $670
Used Buick LaCrosse
341 Great Deals out of 22,621 listings starting at $1,550
Used Chevrolet Tahoe
857 Great Deals out of 27,925 listings starting at $1,700
Used Toyota Camry
1,184 Great Deals out of 95,062 listings starting at $1,250
Used Ford Mustang
552 Great Deals out of 42,538 listings starting at $1,699
Used Chevrolet Silverado 1500
2,579 Great Deals out of 151,095 listings starting at $1,500
Used Ford Taurus
304 Great Deals out of 21,172 listings starting at $1,500

Used Cars For Sale

2017 Chevrolet Impala LS For Sale
1,235 listings starting at $19,498
2016 Chevrolet Impala LS For Sale
35 Great Deals out of 1,143 listings starting at $13,999
2015 Chevrolet Impala LS For Sale
6 Great Deals out of 446 listings starting at $11,795
2014 Chevrolet Impala LS For Sale
16 Great Deals out of 399 listings starting at $9,750
2013 Chevrolet Impala LS For Sale
57 listings starting at $5,999